Multi-dimensional adjustable office chair waist supporting frame

Abstract

The utility model relates to the technical field of office furniture, and discloses a multi-dimensional adjustable office chair waist support frame, which comprises a cushion and a main waist support, the top of the cushion is fixedly connected with a grooved rod, the outer side of the grooved rod is slidably connected with a multi-dimensional adjusting mechanism, the outer side of the grooved rod is slidably connected with a support cushioning mechanism, and the multi-dimensional adjusting mechanism is slidably connected with the main waist support. The multi-dimensional adjusting mechanism comprises a sliding block, clamping blocks which are evenly distributed are fixedly connected to the outer side of the rod with the groove, the outer side of the rod with the groove is slidably connected to the inner side of the sliding block, a groove is formed in the outer side of the sliding block, and an opening and closing rotating shaft is fixedly connected into the groove of the sliding block. According to the utility model, through the multi-dimensional matching of the waist support frame, the waist support is ensured to be at the most comfortable position which is most in accordance with the ergonomics, the waist discomfort caused by improper support position is avoided, and the impact energy is absorbed through the support spring, so that the injury to the waist caused by the instant impact force when a user suddenly sits down or the sitting posture is changed is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to office furniture technical field especially multi -dimensional adjustable office chair waist support frame. BACKGROUND

[0002] Office chair is a kind of seat specially designed for office environment, whether in the office cubicle of office building, open office area or study in the home, people sit on office chair and carry out various office activities such as document processing, computer operation, telephone conference, and can use for several hours every day, the seat part of office chair generally adopts soft and elastic material, such as sponge, memory cotton etc., can effectively reduce the pressure of human weight on hip and leg, makes people feel comfortable when sitting for a long time.Comfortable office chair can make user more focused on work, reduce the distraction caused by physical discomfort, and the convenient moving and rotating function also helps to quickly obtain the required items and information for work, improves the smoothness of work process, thereby improving work efficiency.

[0003] Office chair is usually composed of seat, backrest, back support frame, armrest, chair leg and wheel, etc., the seat provides comfortable sitting surface for user, bears most of the weight of human body, avoids the pressure concentrated in the local area of hip and thigh, reduces the discomfort caused by long sitting, the backrest is used to support the back of user, helps to maintain correct sitting posture, the back support frame plays the role of enhancing the support strength of backrest, and the armrest provides a placing position for the arm of user, so that the arm can be naturally relaxed. User sits on the seat, relieves the waist pressure through the backrest, and relaxes the arm on the armrest.

[0004] In the prior art, the waist support frame is made of metal rod or metal plate, and the waist support of fixed structure cannot be flexibly adjusted in position and angle according to the body shape and sitting posture habit of different users, and cannot effectively and specifically relieve the waist fatigue, so the multi -dimensional adjustable office chair waist support frame is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a multi -dimensional adjustable office chair waist support frame, which aims at improving the problem that the waist support of fixed structure in the prior art cannot be flexibly adjusted in position and angle according to the body shape and sitting posture habit of different users, and cannot effectively relieve the waist fatigue.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The multi -dimensional adjustable office chair waist support frame, including cushion, main waist support, the top of the cushion is fixedly connected with the groove bar, the outer side of the groove bar is slidably connected with the multi -dimensional adjusting mechanism, and the outer side of the groove bar is slidably connected with the support damping mechanism.

[0008] The multi-dimensional adjusting mechanism comprises a sliding block, the outer side of the slotted rod is fixedly connected with uniformly distributed clamping blocks, the outer side of the slotted rod is slidably connected to the inner side of the sliding block, the outer side of the sliding block is provided with a slot, the slot of the sliding block is fixedly connected with an opening and closing rotating shaft, the outer side of the opening and closing rotating shaft is rotatably connected with a lifting button, one end of the outer side of the lifting button is fixedly connected with a limiting spring, the end of the limiting spring away from the lifting button is fixedly connected to the inner side of the slot of the sliding block, the other end of the lifting button is fixedly connected with a lifting control block, the inner side of the lifting control block is slidably connected to the outer side of the clamping block, and the outer side of the main waist support is rotatably connected with an angle adjusting assembly.

[0009] As a further description of the above technical solution:

[0010] The angle adjusting assembly comprises a rotating shaft one, the outer side of the rotating shaft one is fixedly connected to the inner side of the main waist support, the outer side of the rotating shaft one is rotatably connected with a connecting lug, and the outer side of the rotating shaft one is fixedly connected with a connecting vertical plate.

[0011] As a further description of the above technical solution:

[0012] The support shock-absorbing mechanism comprises a connecting horizontal plate, the outer side of the connecting horizontal plate is fixedly connected with a supporting rod, the outer side of the supporting rod is fixedly connected with a supporting spring, the inner side of the sliding block is sleeved on the outer side of the supporting spring, the end of the supporting spring away from the supporting rod is fixedly connected to the inner side of the sliding block, the proximal sides of the two connecting horizontal plates are fixedly connected to the outer sides of the two ends of the connecting vertical plate, and the proximal sides of the two sliding blocks are fixedly connected to the outer sides of the two ends of the connecting vertical plate.

[0013] As a further description of the above technical solution:

[0014] The outer side of the main waist support is fixedly connected with an adjusting tooth block one, the inner side of the adjusting tooth block one is provided with a slot, and the slot of the adjusting tooth block one is slidably connected with an adjusting rod.

[0015] As a further description of the above technical solution:

[0016] One end of the adjusting rod is provided with a hole, the hole of the adjusting rod is rotatably connected with an adjusting rotating shaft, and the other end of the outer side of the adjusting rod is fixedly connected with a limiting block.

[0017] As a further description of the above technical solution:

[0018] The outer side of the adjusting rotating shaft is fixedly connected with an adjusting wrench, and the outer side of the adjusting wrench is slidably connected to the outer side of the adjusting tooth block one.

[0019] As a further description of the above technical solutions:

[0020] The top end of the cushion is fixedly connected with a flexible backrest, the outer side of the flexible backrest is fixedly connected with a side waist support, and the outer side of the flexible backrest is fixedly connected to the outer side of the main waist support.

[0021] As a further description of the above technical solutions:

[0022] The outer side of the limiting block is engagedly connected with an adjusting tooth block two, the outer side of the adjusting tooth block two is fixedly connected with a side waist support, and the outer side of the adjusting rod is rotatably connected in the inner side groove of the adjusting tooth block two.

[0023] The utility model has the advantages of the following:

[0024] 1、The utility model discloses a height adjusting mechanism and angle adjusting mechanism are cooperated, realize the multidimensional support to the waist, allow the user of different height and body to adjust the support of waist according to own demand, ensure that the waist support is in the most comfortable, most ergonomic position, avoid the discomfort of waist due to the improper support position, effectively disperse the pressure of waist, prevent the overstrain of waist muscle and the overpressure of intervertebral disc, reduce the fatigue feeling of long time sitting posture, improve the overall comfortable experience, help to improve work efficiency and concentration.

[0025] 2、The utility model discloses a height adjusting mechanism and angle adjusting mechanism are cooperated, realize the multidimensional support to the waist, allow the user of different height and body to adjust the support of waist according to own demand, ensure that the waist support is in the most comfortable, most ergonomic position, avoid the discomfort of waist due to the improper support position, effectively disperse the pressure of waist, prevent the overstrain of waist muscle and the overpressure of intervertebral disc, reduce the fatigue feeling of long time sitting posture, improve the overall comfortable experience, help to improve work efficiency and concentration. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the three -dimensional schematic view of multidimensional adjustable office chair waist support frame that the utility model provides;

[0027] Figure 2 It is the structure schematic view of connecting ear of multidimensional adjustable office chair waist support frame that the utility model provides;

[0028] Figure 3 It is the structure schematic view of flexible backrest of multidimensional adjustable office chair waist support frame that the utility model provides; Figure 2

[0029] Figure 4 It is the three -dimensional schematic view of multidimensional adjustable office chair waist support frame that the utility model provides;

[0030] ​Figure 5 For Figure 4 Enlarged view at B;

[0031] Figure 6 For Figure 4 Enlarged view at C.

[0032] Legend:

[0033] 1, cushion; 2, grooved rod; 3, clamping block; 4, sliding block; 5, limiting spring; 6, lifting button; 7, opening and closing rotating shaft; 8, lifting control block; 9, supporting spring; 10, supporting rod; 11, connecting horizontal plate; 12, connecting vertical plate; 13, connecting lug; 14, rotating shaft I; 15, main waist support; 16, adjusting tooth block I; 17, adjusting rod; 18, adjusting rotating shaft; 19, adjusting wrench; 20, limiting block; 21, adjusting tooth block II; 22, side waist support; 23, flexible backrest. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] With reference to Figure 1 , Figure 2 and Figure 5 , the present application provides an embodiment: a multi-dimensional adjustable office chair waist support frame, comprising a cushion 1 and a main waist support 15. The cushion 1 is the basic part of the office chair, providing a support surface for the user to sit on. It is made of soft and elastic materials such as high-density sponge or memory foam, and is wrapped with wear-resistant and breathable fabric such as polyester fiber or leather to provide a comfortable sitting feeling, distribute the weight of the human body on the seat, and reduce the discomfort of long sitting. The main waist support 15 is a key component that directly supports the waist, fits the curve of the human waist, provides waist support, helps maintain the natural physiological curvature of the spine, and reduces the pressure on the waist. The top of the cushion 1 is fixedly connected with a grooved rod 2, which is made of high-strength metal to ensure sufficient strength and durability. The outer side of the grooved rod 2 is slidably connected with a multi-dimensional adjusting mechanism, and the outer side of the grooved rod 2 is slidably connected with a supporting and damping mechanism;

[0036] The multi-dimensional adjusting mechanism comprises a sliding block 4 made of high-strength metal, which has a groove matched with the shape of the grooved rod 2 to ensure that it can bear other adjusting components and smoothly slide up and down on the grooved rod 2. The outer side of the grooved rod 2 is fixedly connected with uniformly distributed clamping blocks 3, which are protruding structures integrally formed with the grooved rod 2, cooperating with subsequent components to realize positioning and height adjustment of the sliding block 4 on the grooved rod 2. The outer side of the grooved rod 2 is slidingly connected to the inner side of the sliding block 4, and the outer side of the sliding block 4 is provided with a groove, and the groove of the sliding block 4 is fixedly connected with an opening and closing rotating shaft 7 made of metal and treated with chrome plating or the like on the surface to improve wear resistance and smoothness, which serves as a rotating shaft of subsequent components and provides certain structural support.

[0037] The outer side of the opening and closing rotating shaft 7 is rotatably connected with a lifting button 6, one end of which has a shape convenient for finger pressing, and the other end is fixedly connected with a subsequent component, so that the lifting button 6 can be controlled to lift by pressing. The outer side of one end of the lifting button 6 is fixedly connected with a limiting spring 5 to provide a reset elastic force for the lifting button 6, so that the lifting button 6 can return to the initial position when there is no external force pressing. The end of the limiting spring 5 away from the lifting button 6 is fixedly connected to the inner side of the groove of the sliding block 4, and the other end of the lifting button 6 is fixedly connected with a lifting control block 8, which is a component cooperating with the clamping block 3 and is made of metal and has a groove matched with the shape of the clamping block 3. The lifting control block 8 is separated from or engaged with the clamping block 3 under the driving of the lifting button 6 to realize lifting and positioning of the sliding block 4 on the grooved rod 2. The inner side of the lifting control block 8 is slidingly connected to the outer side of the clamping block 3, and the outer side of the main waist support 15 is rotatably connected with an angle adjusting assembly.

[0038] The angle adjusting assembly comprises a rotating shaft one 14, which is a metal shaft treated with polishing and lubrication to ensure smooth rotation and drive subsequent components to rotate. The outer side of the rotating shaft one 14 is fixedly connected to the inner side of the main waist support 15, and the outer side of the rotating shaft one 14 is rotatably connected with a connecting lug 13, which is an ear-shaped structure with a hole made of metal and used for connecting with the rotating shaft one 14 and other components. The connecting lug 13 connects the main waist support 15 and other support structures to ensure the stability of the structure during angle adjustment. The outer side of the rotating shaft one 14 is fixedly connected with a connecting vertical plate 12, which is a vertical plate-shaped structure made of metal and used for connecting and supporting other components to provide structural support and stability.

[0039] Referring to Figure 2 , Figure 4 and Figure 6The support damping mechanism comprises a connecting horizontal plate 11, which is a horizontally arranged plate-shaped structure made of metal and connects subsequent components together to form a stable horizontal frame. This horizontal connection enables the two side support rods 10 to work together and ensures the stability of the entire waist support frame in the left-right direction. The outer side of the connecting horizontal plate 11 is fixedly connected with a support rod 10, which is a rod-shaped component made of metal and has certain strength and rigidity. The outer side of the support rod 10 is fixedly connected with a support spring 9, which is a coil spring made of spring steel and has a certain elastic coefficient. When the seat is subjected to pressure, the support spring 9 absorbs impact energy through compression deformation, providing buffering and damping effect, improving riding comfort, and providing stable support force to the waist in the compressed state together with subsequent components, effectively relieving waist pain. The inner side of the sliding block 4 is sleeved on the outer side of the support spring 9, and the end of the support spring 9 away from the support rod 10 is fixedly connected to the inner side of the sliding block 4. The proximal sides of the two connecting horizontal plates 11 are fixedly connected to the outer sides of the two ends of the connecting vertical plate 12, and the proximal sides of the two sliding blocks 4 are fixedly connected to the outer sides of the two ends of the connecting vertical plate 12.

[0040] Referring to Figure 2 and Figure 3 The outer side of the main waist support 15 is fixedly connected with an adjusting tooth block 16, which is a block-shaped component with a tooth structure made of metal and fixed to the outer side of the main waist support 15. The inner side of the adjusting tooth block 16 is provided with a groove, and the adjusting rod 17 is slidably connected in the groove of the adjusting tooth block 16. The adjusting rod 17 can slide inside the subsequent components and is made of metal material to achieve locking or loosening. One end of the adjusting rod 17 is provided with a hole, and the adjusting shaft 18 is rotatably connected in the hole of the adjusting rod 17. The adjusting shaft 18 is made of metal material to ensure smooth rotation. The other end of the adjusting rod 17 is fixedly connected with a limiting block 20, which is used to prevent the adjusting rod 17 from falling off and ensure that the adjusting rod 17 does not loosen.

[0041] The top end of the cushion 1 is fixedly connected with a flexible backrest 23, and the outer side of the flexible backrest 23 is fixedly connected with a side waist support 22. The side waist support 22 supports the waist from the side and works together with the main waist support 15 to provide more comprehensive waist support. The outer side of the flexible backrest 23 is fixedly connected to the outer side of the main waist support 15

[0042] The outer side of the adjusting shaft 18 is fixedly connected with an adjusting wrench 19 made of metal material. By its eccentric design, when rotated to the thicker side, it provides greater downward pressure to achieve locking between the tooth blocks. When rotated to the thinner side, the pressure is reduced to achieve separation and loosening between the tooth blocks. The outer side of the adjusting wrench 19 is slidably connected to the outer side of the adjusting tooth block 16.

[0043] The outer side of the side waist support 22 is fixedly connected with an adjusting tooth block two 21, which is similar to the adjusting tooth block one 16 and is a block-shaped component with a tooth structure. The adjusting tooth block two 21 is engaged with the outer side of the adjusting tooth block one 16, and the outer side of the adjusting rod 17 is rotatably connected in the inner side slot of the adjusting tooth block two 21.

[0044] The surface of the flexible backrest 23 is provided with air holes, the inside of the flexible backrest 23 is provided with a metal frame for support, the outside is wrapped with soft memory cotton, and the surface is provided with air-permeable fabric, which ensures comfort and air permeability, provides support for the back, improves the comfort of riding through the air holes, and reduces the hot feeling of the back. The upper end of the outer side of the flexible backrest 23 is fixedly connected to the outer side of the connecting horizontal plate 11.

[0045] Working principle: In order to realize the multi-dimensional adjustment of the support frame, first, the height is adjusted. When the lifting button 6 is pressed, the lifting button 6 will rotate around the opening and closing shaft 7, and at this time the limiting spring 5 is compressed. The lifting button 6 drives the lifting control block 8 to move, so that the lifting control block 8 is separated from the clamping block 3, and the sliding block 4 can slide up and down on the slotted rod 2, realizing the height adjustment of the waist support frame. After the lifting button 6 is released, the limiting spring 5 resets, driving the lifting button 6 to return to the initial position, and the lifting control block 8 is clamped with the clamping block 3 again, fixing the position of the sliding block 4.

[0046] Subsequently, the angle is adjusted. The main waist support 15 is connected with the connecting lug 13 and the connecting vertical plate 12 through the shaft one 14. When the angle needs to be adjusted, the main waist support 15 can rotate around the shaft one 14, realizing the multi-angle adjustment of the main waist support 15. When fine adjustment of the waist support is needed, the adjusting wrench 19 rotates around the adjusting shaft 18. When the adjusting wrench 19 is rotated to the thicker side, a larger downward pressure is applied to the adjusting tooth block one 16, so that the adjusting tooth block one 16 is closely engaged with the adjusting rod 17, locking the position of the side waist support 22; when the adjusting wrench 19 is rotated to the thinner side, the pressure is reduced, and the adjusting tooth block one 16 and the adjusting rod 17 can slide relative to each other, realizing the fine adjustment of the angle of the side waist support 22. The adjusting tooth block two 21 is engaged with the adjusting tooth block one 16, realizing the linkage adjustment of the side waist support 22 and the main waist support 15.

[0047] When the user sits on the office chair and exerts pressure on the waist support frame, the supporting spring 9 will be compressed, and the supporting rod 10 works cooperatively through the connecting horizontal plate 11 to absorb impact energy, playing a role in buffering and shock absorption, and at the same time, in the compressed state, it cooperates with other components to provide stable support for the waist.

[0048] Throughout the process, the flexible backrest 23 provides support for the back, its internal metal frame and the outer wrapped memory cotton and the surface of the breathable fabric to ensure comfort and ventilation, while the cushion 1 uses high-density sponge or memory cotton and other materials, and the outer wrapping of wear-resistant and breathable fabric provides a comfortable sitting feeling and distributes pressure for the user.

[0049] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. Multidimensional adjustable office chair lumbar support frame, comprising a seat cushion (1), a main lumbar support (15), characterized in that: The top of the cushion (1) is fixedly connected with a slotted rod (2), the outer side of the slotted rod (2) is slidably connected with a multi-dimensional adjusting mechanism, and the outer side of the slotted rod (2) is slidably connected with a supporting and damping mechanism. The multi-dimensional adjusting mechanism comprises a sliding block (4), the outer side of the slotted rod (2) is fixedly connected with uniformly distributed clamping blocks (3), the outer side of the slotted rod (2) is slidably connected to the inner side of the sliding block (4), the outer side of the sliding block (4) is provided with a slot, the slot in the sliding block (4) is fixedly connected with an opening and closing rotating shaft (7), the outer side of the opening and closing rotating shaft (7) is rotatably connected with a lifting button (6), one end of the lifting button (6) is fixedly connected with a limiting spring (5) on the outer side, the end of the limiting spring (5) away from the lifting button (6) is fixedly connected to the inner side of the slot in the sliding block (4), the other end of the lifting button (6) is fixedly connected with a lifting control block (8), the inner side of the lifting control block (8) is slidably connected to the outer side of the clamping block (3), and the outer side of the main waist support (15) is rotatably connected with an angle adjusting assembly.

2. The multi-dimensionally adjustable office chair lumbar support frame of claim 1, wherein: The angle adjusting assembly comprises a rotating shaft I (14), the outer side of the rotating shaft I (14) is fixedly connected to the inner side of the main waist support (15), the outer side of the rotating shaft I (14) is rotatably connected with a connecting lug (13), and the outer side of the rotating shaft I (14) is fixedly connected with a connecting vertical plate (12).

3. The multi-dimensionally adjustable office chair lumbar support frame of claim 2, wherein: The supporting and damping mechanism comprises a connecting horizontal plate (11), the outer side of the connecting horizontal plate (11) is fixedly connected with a supporting rod (10), the outer side of the supporting rod (10) is fixedly connected with a supporting spring (9), the inner side of the sliding block (4) is sleeved on the outer side of the supporting spring (9), the end of the supporting spring (9) away from the supporting rod (10) is fixedly connected to the inner side of the sliding block (4), and the proximal sides of the two connecting horizontal plates (11) are fixedly connected to the outer sides of the two ends of the connecting vertical plate (12), and the proximal sides of the two sliding blocks (4) are fixedly connected to the outer sides of the two ends of the connecting vertical plate (12).

4. The multi-dimensionally adjustable office chair lumbar support frame of claim 1, wherein: The outer side of the main waist support (15) is fixedly connected with an adjusting tooth block I (16), the inner side of the adjusting tooth block I (16) is provided with a slot, and the slot in the adjusting tooth block I (16) is slidably connected with an adjusting rod (17).

5. The multi-dimensionally adjustable office chair lumbar support frame of claim 4, wherein: One end of the adjusting rod (17) is provided with a hole, the hole in the adjusting rod (17) is rotatably connected with an adjusting rotating shaft (18), and the other end of the adjusting rod (17) is fixedly connected with a limiting block (20) on the outer side.

6. The multi-dimensionally adjustable office chair lumbar support frame of claim 5, wherein: The outer side of the adjusting rotating shaft (18) is fixedly connected with an adjusting wrench (19), and the outer side of the adjusting wrench (19) is slidably connected to the outer side of the adjusting tooth block I (16).

7. The multi-dimensionally adjustable office chair lumbar support frame of claim 1, wherein: The top end of the cushion (1) is fixedly connected with a flexible backrest (23), the outer side of the flexible backrest (23) is fixedly connected with a side waist support (22), and the outer side of the flexible backrest (23) is fixedly connected to the outer side of the main waist support (15).

8. The multi-dimensionally adjustable office chair lumbar support frame of claim 5, wherein: The outer side of the limiting block (20) is connected with the adjusting tooth block two (21), the outer side of the adjusting tooth block two (21) is fixedly connected with the side waist support (22), and the outer side of the adjusting rod (17) is rotatably connected in the inner side groove of the adjusting tooth block two (21).

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